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            | 
                 
                    Closing price on 6/24/2021
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    3.20 | 
                 
                
                    | High | 
                    3.20 | 
                 
                
                    | Low | 
                    3.00 | 
                     
                
                    | Volume | 
                    1,003,200 | 
                                 
                
                    | Split-adjusted Price | 
                    3.10 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
QBS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                6/24/2021
             | 
            
                0.00 / 0.00%
             |             
            
                3.20
             |           
            
                3.20
             |               
            
                3.00
             |                           
            
                3.10
             | 
            
                3.10
             |                     
            
                3.10
             |                                 
            
                1,003,200
             |            
            
                 
             |                                       
         
    
        
            | 
                6/23/2021
             | 
            
                -0.10 / -3.13%
             |             
            
                3.30
             |           
            
                3.30
             |               
            
                3.10
             |                           
            
                3.10
             | 
            
                3.11
             |                     
            
                3.10
             |                                 
            
                1,029,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/22/2021
             | 
            
                0.00 / 0.00%
             |             
            
                3.20
             |           
            
                3.30
             |               
            
                3.20
             |                           
            
                3.20
             | 
            
                3.20
             |                     
            
                3.20
             |                                 
            
                1,265,700
             |            
            
                 
             |                                       
         
    
        
            | 
                6/21/2021
             | 
            
                -0.10 / -3.03%
             |             
            
                3.30
             |           
            
                3.30
             |               
            
                3.10
             |                           
            
                3.20
             | 
            
                3.21
             |                     
            
                3.20
             |                                 
            
                1,369,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/18/2021
             | 
            
                0.00 / 0.00%
             |             
            
                3.30
             |           
            
                3.40
             |               
            
                3.20
             |                           
            
                3.30
             | 
            
                3.24
             |                     
            
                3.30
             |                                 
            
                966,200
             |            
            
                 
             |                                       
         
    
        
            | 
                6/17/2021
             | 
            
                +0.10 / +3.13%
             |             
            
                3.20
             |           
            
                3.30
             |               
            
                3.10
             |                           
            
                3.30
             | 
            
                3.19
             |                     
            
                3.30
             |                                 
            
                1,161,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/16/2021
             | 
            
                0.00 / 0.00%
             |             
            
                3.20
             |           
            
                3.20
             |               
            
                3.00
             |                           
            
                3.20
             | 
            
                3.11
             |                     
            
                3.20
             |                                 
            
                1,181,500
             |            
            
                 
             |                                       
         
    
        
            | 
                6/15/2021
             | 
            
                +0.10 / +3.23%
             |             
            
                3.20
             |           
            
                3.20
             |               
            
                3.10
             |                           
            
                3.20
             | 
            
                3.11
             |                     
            
                3.20
             |                                 
            
                739,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/14/2021
             | 
            
                -0.20 / -6.06%
             |             
            
                3.30
             |           
            
                3.30
             |               
            
                3.10
             |                           
            
                3.10
             | 
            
                3.18
             |                     
            
                3.10
             |                                 
            
                740,500
             |            
            
                 
             |                                       
         
    
        
            | 
                6/11/2021
             | 
            
                +0.20 / +6.45%
             |             
            
                3.10
             |           
            
                3.30
             |               
            
                2.90
             |                           
            
                3.30
             | 
            
                3.15
             |                     
            
                3.30
             |                                 
            
                643,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/10/2021
             | 
            
                -0.10 / -3.13%
             |             
            
                3.20
             |           
            
                3.20
             |               
            
                3.00
             |                           
            
                3.10
             | 
            
                3.12
             |                     
            
                3.10
             |                                 
            
                1,274,100
             |            
            
                 
             |                                       
         
    
        
            | 
                6/9/2021
             | 
            
                0.00 / 0.00%
             |             
            
                3.20
             |           
            
                3.40
             |               
            
                3.10
             |                           
            
                3.20
             | 
            
                3.21
             |                     
            
                3.20
             |                                 
            
                1,773,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/8/2021
             | 
            
                -0.30 / -8.57%
             |             
            
                3.50
             |           
            
                3.60
             |               
            
                3.20
             |                           
            
                3.20
             | 
            
                3.34
             |                     
            
                3.20
             |                                 
            
                1,901,400
             |            
            
                 
             |                                       
         
    
        
            | 
                6/7/2021
             | 
            
                0.00 / 0.00%
             |             
            
                3.50
             |           
            
                3.70
             |               
            
                3.40
             |                           
            
                3.50
             | 
            
                3.59
             |                     
            
                3.50
             |                                 
            
                2,199,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/4/2021
             | 
            
                +0.10 / +2.94%
             |             
            
                3.50
             |           
            
                3.50
             |               
            
                3.30
             |                           
            
                3.50
             | 
            
                3.43
             |                     
            
                3.50
             |                                 
            
                2,401,300
             |            
            
                 
             |                                       
         
    
        
            | 
                6/3/2021
             | 
            
                +0.10 / +3.03%
             |             
            
                3.50
             |           
            
                3.50
             |               
            
                3.30
             |                           
            
                3.40
             | 
            
                3.42
             |                     
            
                3.40
             |                                 
            
                3,316,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/2/2021
             | 
            
                +0.30 / +10.00%
             |             
            
                3.30
             |           
            
                3.30
             |               
            
                3.20
             |                           
            
                3.30
             | 
            
                3.30
             |                     
            
                3.30
             |                                 
            
                1,334,100
             |            
            
                 
             |                                       
         
    
        
            | 
                6/1/2021
             | 
            
                +0.20 / +7.14%
             |             
            
                2.90
             |           
            
                3.00
             |               
            
                2.80
             |                           
            
                3.00
             | 
            
                2.99
             |                     
            
                3.00
             |                                 
            
                491,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/31/2021
             | 
            
                -0.30 / -9.68%
             |             
            
                3.10
             |           
            
                3.10
             |               
            
                2.80
             |                           
            
                2.80
             | 
            
                2.89
             |                     
            
                2.80
             |                                 
            
                2,826,400
             |            
            
                 
             |                                       
         
    
        
            | 
                5/28/2021
             | 
            
                -0.10 / -3.13%
             |             
            
                3.10
             |           
            
                3.20
             |               
            
                2.90
             |                           
            
                3.10
             | 
            
                3.05
             |                     
            
                3.10
             |                                 
            
                2,542,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/27/2021
             | 
            
                0.00 / 0.00%
             |             
            
                3.20
             |           
            
                3.20
             |               
            
                3.10
             |                           
            
                3.20
             | 
            
                3.11
             |                     
            
                3.20
             |                                 
            
                1,062,000
             |            
            
                 
             |                                       
         
    
        
            | 
                5/26/2021
             | 
            
                -0.20 / -5.88%
             |             
            
                3.40
             |           
            
                3.40
             |               
            
                3.10
             |                           
            
                3.20
             | 
            
                3.22
             |                     
            
                3.20
             |                                 
            
                3,429,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/25/2021
             | 
            
                -0.10 / -2.86%
             |             
            
                3.50
             |           
            
                3.50
             |               
            
                3.30
             |                           
            
                3.40
             | 
            
                3.37
             |                     
            
                3.40
             |                                 
            
                1,543,700
             |            
            
                 
             |                                       
         
    
        
            | 
                5/24/2021
             | 
            
                0.00 / 0.00%
             |             
            
                3.50
             |           
            
                3.70
             |               
            
                3.30
             |                           
            
                3.50
             | 
            
                3.42
             |                     
            
                3.50
             |                                 
            
                1,857,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/21/2021
             | 
            
                0.00 / 0.00%
             |             
            
                3.30
             |           
            
                3.50
             |               
            
                3.20
             |                           
            
                3.50
             | 
            
                3.24
             |                     
            
                3.50
             |                                 
            
                6,761,310
             |            
            
                 
             |                                       
         
    
        
            | 
                5/20/2021
             | 
            
                -0.30 / -7.89%
             |             
            
                3.70
             |           
            
                3.70
             |               
            
                3.50
             |                           
            
                3.50
             | 
            
                3.52
             |                     
            
                3.50
             |                                 
            
                3,666,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/19/2021
             | 
            
                -0.20 / -5.00%
             |             
            
                4.00
             |           
            
                4.20
             |               
            
                3.60
             |                           
            
                3.80
             | 
            
                3.63
             |                     
            
                3.80
             |                                 
            
                4,775,900
             |            
            
                 
             |                                       
         
    
        
            | 
                5/18/2021
             | 
            
                +0.20 / +5.26%
             |             
            
                3.90
             |           
            
                4.10
             |               
            
                3.70
             |                           
            
                4.00
             | 
            
                4.00
             |                     
            
                4.00
             |                                 
            
                6,510,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/17/2021
             | 
            
                +0.30 / +8.57%
             |             
            
                3.50
             |           
            
                3.80
             |               
            
                3.50
             |                           
            
                3.80
             | 
            
                3.79
             |                     
            
                3.80
             |                                 
            
                6,455,900
             |            
            
                 
             |                                       
         
    
        
            | 
                5/11/2021
             | 
            
                +0.12 / +3.55%
             |             
            
                3.35
             |           
            
                3.54
             |               
            
                3.35
             |                           
            
                3.50
             | 
            
                3.45
             |                     
            
                3.50
             |                                 
            
                724,500
             |  
            
                 
             |                                                              
             
    
         
    
    
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						| 
 Market Update 
        
            
                Last updated at 3:10:02 PM
                                                                
            
            
            
            
        
        
     
 
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